clock input-threshold

Function

The clock input-threshold command configures a lower threshold for the input quality level of a clock source.

The undo clock input-threshold command restores the default configuration.

By default, the lower threshold for the input quality level of a clock source is sec. When the enhanced SSM function is enabled, the default value is SEC for high-precision devices and ESEC for ultra-high-precision devices.

Format

clock input-threshold { dnu | prc | sec | ssua | ssub | prtc | eprtc | esec | eprc }

Parameters

Parameter	Description	Value
dnu	Indicates that the clock source is not synchronized.	-
prc	Indicates that the lower threshold for the input quality level of a clock source is for G.811 clock signals.	-
sec	Indicates that the lower threshold for the input quality level of a clock source is for SDH device clock signals.	-
ssua	Indicates that the lower threshold for the input quality level of a clock source is for G.812 transit node clock signals.	-
ssub	Indicates that the lower threshold for the input quality level of a clock source is for G.812 local node clock signals.	-
prtc	Indicates that the lower threshold for the input quality level of a clock source is for G.8272 clock signals.	-
eprtc	Indicates that the lower threshold for the input quality level of a clock source is for G.8272.1 clock signals.	-
esec	Indicates that the lower threshold for the input quality level of a clock source is for G.8262.1 clock signals.	-
eprc	Indicates that the lower threshold for the input quality level of a clock source is for G.811.1 clock signals.	-

Views

System view

Default Level

2: Configuration level

Task Name and Operations

Task Name	Operations
clksync	write

Usage Guidelines

Usage Scenario

When the input quality level of a clock source falls below the threshold, the clock source will not be synchronized. To configure the lower threshold of the input quality level of a clock source, run the clock input-threshold command.

In VS mode, this command is supported only by the admin VS.

Example

# Configure the lower threshold of the input quality level for a clock source as ssua.

<HUAWEI> system-view
[~HUAWEI] clock input-threshold ssua